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authorNathan Binkert <binkertn@umich.edu>2003-11-14 12:32:52 -0500
committerNathan Binkert <binkertn@umich.edu>2003-11-14 12:32:52 -0500
commit492fa2ae5ee7ef9c3f3601ac611ebc9a43ff83eb (patch)
tree4ab3911ab8d1e6fac6b1261c6bb7cc7c5caf1048 /system/alpha/console
parentb8612cbda3625e27f109469a1f5416237c97fb41 (diff)
downloadgem5-492fa2ae5ee7ef9c3f3601ac611ebc9a43ff83eb.tar.xz
Get the console code to compile correctly
Add support for some thigns that M5 needs Make this better support Tru64 v5.1 console/Makefile: I couldn't figure out the old build system since I was missing a bunch of tools at the time, so I kinda rewrote it. console/console.c: Get the includes right, and make things compile little bit of cleanup along the way console/paljtokern.s: formatting junk console/printf.c: Formatting get const right h/lib.h: fiddle with the includes that we need console/console.c: Get the BOOTDEVICE_NAME right Add a bit of support for grabbing console environment variables
Diffstat (limited to 'system/alpha/console')
-rw-r--r--system/alpha/console/Makefile61
-rw-r--r--system/alpha/console/console.c187
-rw-r--r--system/alpha/console/paljtokern.s10
-rw-r--r--system/alpha/console/paljtoslave.tmp92
-rw-r--r--system/alpha/console/printf.c32
5 files changed, 213 insertions, 169 deletions
diff --git a/system/alpha/console/Makefile b/system/alpha/console/Makefile
index 9b8748f13..6c2ee111c 100644
--- a/system/alpha/console/Makefile
+++ b/system/alpha/console/Makefile
@@ -2,43 +2,48 @@
all: console
DBMENTRY = fffffc0000010000
-INCLUDES = -I$(PALCODE) -I$(INCLUDEH) -I$(SIMTOOLS)/cpus-alpha/simos
-#-I/udir/bugnion/ebfw/h -I/udir/bugnion/ebfw/palcode/xxm
+INCLUDES = -I$(PALCODE) -I$(INCLUDEH) -I$(M5)/dev
SOURDIR = ./
-EB_TOOLBOX = /wrl/proj/simos/bin/tools/osf
PALCODE = ../palcode
INCLUDEH = ../h
dbmentry.o: dbmentry.s
- $(AS) $(INCLUDES) -o $*.o $*.s
+ $(AS) $(INCLUDES) -nointrinsics -o $*.o $*.s
console.o: console.c
- $(CC) -g3 $(INCLUDES) -o $*.o -c $*.c
+ $(CC) -g3 $(INCLUDES) -nointrinsics -o $*.o -c $*.c
printf.o: printf.c
- $(CC) -g3 $(INCLUDES) -o $*.o -c $*.c
-
-paljtokern.o: $(SOURCEDIR)paljtokern.s
- rm $(OBJDIR)paljtokern.i
- cpp -I$(PALCODE) $(SOURCEDIR)paljtokern.s $(OBJDIR)paljtokern.i
- $(EB_TOOLBOX)/gas -21164 -o $(OBJDIR)paljtokern.aout.o $(OBJDIR)paljtokern.i
- $(EB_TOOLBOX)/astrip -a $(OBJDIR)paljtokern.aout.o $(OBJDIR)paljtokern.strip
- $(EB_TOOLBOX)/strip2array $(OBJDIR)paljtokern.strip $(OBJDIR)paljtokern.c
- $(CC) $(CCFLAGS) -o $(OBJDIR)paljtokern.o -c $(INCLUDES) $(OBJDIR)paljtokern.c
-
-paljtoslave.o: $(SOURCEDIR)paljtoslave.s
- rm $(OBJDIR)paljtoslave.i
- cpp -I$(PALCODE) $(SOURCEDIR)paljtoslave.s $(OBJDIR)paljtoslave.i
- $(EB_TOOLBOX)/gas -21164 -o $(OBJDIR)paljtoslave.aout.o $(OBJDIR)paljtoslave.i
- $(EB_TOOLBOX)/astrip -a $(OBJDIR)paljtoslave.aout.o $(OBJDIR)paljtoslave.strip
- $(EB_TOOLBOX)/strip2array $(OBJDIR)paljtoslave.strip $(OBJDIR)paljtoslave.tmp
- sed -e 's/palJToKern/palJToSlave/' $(OBJDIR)paljtoslave.tmp >$(OBJDIR)paljtoslave.c
- $(CC) $(CCFLAGS) -o $(OBJDIR)paljtoslave.o -c $(INCLUDES) $(OBJDIR)paljtoslave.c
-
-console: console.o dbmentry.o printf.o paljtokern.o paljtoslave.o
- $(LD) -o console -N -T $(DBMENTRY) -non_shared dbmentry.o console.o \
- printf.o paljtokern.o paljtoslave.o -lc
+ $(CC) -g3 $(INCLUDES) -nointrinsics -o $*.o -c $*.c
+
+paljtokern.s.o: paljtokern.s
+ g++ -I ../palcode -E -P -nostdinc -nostdinc++ -x c++ paljtokern.s | \
+ gas -m 21164 -o paljtokern.s.o
+
+paljtoslave.s.o: paljtoslave.s
+ g++ -I ../palcode -E -P -nostdinc -nostdinc++ -x c++ paljtoslave.s | \
+ gas -m 21164 -o paljtoslave.s.o
+
+paljtokern.c: paljtokern.s.o
+ echo 'unsigned int palJToKern[] = {' > paljtokern.c
+ dis paljtokern.s.o | awk '{print "0x"$$2","}' >> paljtokern.c
+ echo "0x0\n};" >> paljtokern.c
+
+paljtoslave.c: paljtoslave.s.o
+ echo "unsigned int palJToSlave[] = {" > paljtoslave.c
+ dis paljtoslave.s.o | awk '{print "0x"$$2","}' >> paljtoslave.c
+ echo "0x0\n};" >> paljtoslave.c
+
+paljtokern.c.o: paljtokern.c
+ $(CC) -g3 -nointrinsics -o paljtokern.c.o -c paljtokern.c
+
+paljtoslave.c.o: paljtoslave.c
+ $(CC) -g3 -nointrinsics -o paljtoslave.c.o -c paljtoslave.c
+
+console: console.o dbmentry.o printf.o paljtokern.c.o paljtoslave.c.o
+ $(LD) -o console -N -T $(DBMENTRY) -non_shared \
+ dbmentry.o console.o printf.o paljtokern.c.o paljtoslave.c.o -lc
clean:
- rm *.o; rm console; rm *.strip; rm paljtokern.c paljtoslave.c; touch paljtokern.i paljtoslave.i
+ rm -f *.o console *.strip paljtokern.c paljtoslave.c
diff --git a/system/alpha/console/console.c b/system/alpha/console/console.c
index c6a61a10e..6763a332f 100644
--- a/system/alpha/console/console.c
+++ b/system/alpha/console/console.c
@@ -10,10 +10,14 @@
/* from simos */
typedef unsigned long long uint64;
-#include "machine_defs.h"
-#include "new_aouthdr.h"
+typedef unsigned int uint32;
+
+#define CONSOLE
#include "alpha_access.h"
+#include "machine_defs.h"
+
#if 0
+#include "new_aouthdr.h"
#include "srcmax.h"
#endif
@@ -64,7 +68,7 @@ void jToPal(ul bootadr);
void SlaveLoop(int cpu);
-AlphaAccess simosConf;
+struct AlphaAccess simosConf;
/* **************************************************************
* Console callbacks use VMS calling conventions
@@ -112,6 +116,12 @@ void InitConsole(void)
#endif
}
+char GetChar()
+{
+ struct AlphaAccess *k1Conf = (struct AlphaAccess *)(__MAGIC_ZONE(0, 0, MAGIC_ZONE_EV5_ALIAS));
+ return 0;
+}
+
void PutChar(char c)
{
#if 0
@@ -120,22 +130,21 @@ void PutChar(char c)
#if 0
*(int*) PHYS_TO_K1(SLOT_D_COM1<<5) = c;
#endif
- AlphaAccess *k1Conf = (AlphaAccess *)(__MAGIC_ZONE(0, 0, MAGIC_ZONE_EV5_ALIAS));
+ struct AlphaAccess *k1Conf = (struct AlphaAccess *)(__MAGIC_ZONE(0, 0, MAGIC_ZONE_EV5_ALIAS));
k1Conf->outputChar = c;
}
-int passArgs(int argc)
-{
- ;
-}
-
+int
+passArgs(int argc)
+{ return 0; }
+int
main(int argc, char **argv)
{
int x,i;
- AlphaAccess *k1Conf = (AlphaAccess *)(__MAGIC_ZONE(0, 0, MAGIC_ZONE_EV5_ALIAS));
+ struct AlphaAccess *k1Conf = (struct AlphaAccess *)(__MAGIC_ZONE(0, 0, MAGIC_ZONE_EV5_ALIAS));
ui *k1ptr,*ksegptr;
@@ -175,7 +184,8 @@ main(int argc, char **argv)
*/
struct rpb xxm_rpb = {
NULL, /* 000: physical self-reference */
- 'H'|('W'<<8)|('R'<<16)|('P'<<24)|('B'<<32), /* 008: contains string "HWRPB" */
+ ((long)'H') | (((long)'W') << 8) | (((long)'R') << 16) |
+ ((long)'P' << 24) | (((long)'B') << 32), /* 008: contains string "HWRPB" */
6, /* 010: HWRPB version number */
/* the byte count is wrong, but who needs it? - lance */
0, /* 018: bytes in RPB perCPU CTB CRB MEDSC */
@@ -243,7 +253,7 @@ struct rpb_percpu xxm_rpb_percpu = {
0x4000, /* 098: phys addr of palcode mem space */
0x2000, /* 0A0: phys addr of palcode scratch space */
(2 << 16) | (5 << 8) | 1, /* 0A8: PALcode rev required */
- 5|(2<<32), /* 0B0: processor type */
+ 5 | (2L << 32), /* 0B0: processor type */
7, /* 0B8: processor variation */
'D'|('a'<<8)|('v'<<16)|('e'<<24), /* 0C0: processor revision */
{'D','a','v','e','C','o','n','r','o','y',0,0,0,0,0,0}, /* 0C8: proc serial num: 10 ascii chars */
@@ -371,6 +381,8 @@ ul *first = 0;
ul *third_rpb = 0;
ul *reservedFixup = 0;
+int strcpy(char *dst, char *src);
+
struct rpb *rpb;
unixBoot(int go, int argc, char **argv)
@@ -777,7 +789,11 @@ unixBoot(int go, int argc, char **argv)
{
ul *ptr = (ul*)((char*)rpb_dsr + sizeof(struct rpb_dsr ));
rpb_crb->rpb_pa_disp = KSEG_TO_PHYS(ptr);
+#if 0
rpb_crb->rpb_va_disp = 0x10000000 + ((ul)ptr&(0x2000*HWRPB_PAGES-1));
+#else
+ rpb_crb->rpb_va_disp = 0x10000000 + ((ul)ptr & 0x1fff);
+#endif
printf("ConsoleDispatch at virt %x phys %x val %x\n",
rpb_crb->rpb_va_disp,
rpb_crb->rpb_pa_disp,
@@ -785,7 +801,11 @@ unixBoot(int go, int argc, char **argv)
*ptr++ = 0;
*ptr++ = (ul) consoleCallback;
rpb_crb->rpb_pa_fixup = KSEG_TO_PHYS(ptr);
+#if 0
rpb_crb->rpb_va_fixup = 0x10000000 + ((ul)ptr& (0x2000*HWRPB_PAGES-1));
+#else
+ rpb_crb->rpb_va_fixup = 0x10000000 + ((ul)ptr & 0x1fff);
+#endif
*ptr++ = 0;
*ptr++ = (ul) consoleFixup;
}
@@ -807,7 +827,7 @@ unixBoot(int go, int argc, char **argv)
{
int i;
for (i=1;i<simosConf.numCPUs;i++) {
- volatile AlphaAccess *k1Conf = (volatile AlphaAccess *)
+ volatile struct AlphaAccess *k1Conf = (volatile struct AlphaAccess *)
(__MAGIC_ZONE(0, 0, MAGIC_ZONE_EV5_ALIAS));
SpinLock(&theLock);
printf("Bootstraping CPU %d with sp=0x%x \n",
@@ -944,11 +964,12 @@ struct {
char name[128];
} deviceState[32];
-#define BOOTDEVICE_NAME "SCSI 1 0 0 1 100"
+#define BOOTDEVICE_NAME "SCSI 1 0 0 1 100 0"
-void DeviceOperation(long op,long channel, long count, long address, long block)
+void
+DeviceOperation(long op, long channel, long count, long address, long block)
{
- AlphaAccess *k1Conf = (AlphaAccess *)
+ struct AlphaAccess *k1Conf = (struct AlphaAccess *)
(__MAGIC_ZONE(0, 0, MAGIC_ZONE_EV5_ALIAS));
long pAddr;
@@ -993,35 +1014,137 @@ void DeviceOperation(long op,long channel, long count, long address, long block)
#define CONSCB_GETENV 0x22
/* AXP manual 2-26 */
+#define ENV_AUTO_ACTION 0X01
+#define ENV_BOOT_DEV 0X02
+#define ENV_BOOTDEF_DEV 0X03
+#define ENV_BOOTED_DEV 0X04
+#define ENV_BOOT_FILE 0X05
+#define ENV_BOOTED_FILE 0X06
+#define ENV_BOOT_OSFLAGS 0X07
+#define ENV_BOOTED_OSFLAGS 0X08
+#define ENV_BOOT_RESET 0X09
+#define ENV_DUMP_DEV 0X0A
+#define ENV_ENABLE_AUDIT 0X0B
+#define ENV_LICENSE 0X0C
+#define ENV_CHAR_SET 0X0D
+#define ENV_LANGUAGE 0X0E
+#define ENV_TTY_DEV 0X0F
+#define ENV_SCSIID 0X42
+#define ENV_SCSIFAST 0X43
+#define ENV_COM1_BAUD 0X44
+#define ENV_COM1_MODEM 0X45
+#define ENV_COM1_FLOW 0X46
+#define ENV_COM1_MISC 0X47
+#define ENV_COM2_BAUD 0X48
+#define ENV_COM2_MODEM 0X49
+#define ENV_COM2_FLOW 0X4A
+#define ENV_COM2_MISC 0X4B
+#define ENV_PASSWORD 0X4C
+#define ENV_SECURE 0X4D
+#define ENV_LOGFAIL 0X4E
+#define ENV_SRM2DEV_ID 0X4F
+
+#define MAX_ENVLEN 32
+
+char env_booted_dev[MAX_ENVLEN] = BOOTDEVICE_NAME;
+char env_booted_osflags[MAX_ENVLEN] = "";
+char env_com1_baud[MAX_ENVLEN] = "";
+char env_secure[MAX_ENVLEN] = "";
-#define ENV_BOOTED_DEV 0x4
-#define ENV_BOOTED_OSFLAGS 0x8
+#if 0
+char env_auto_action[MAX_ENVLEN] = "";
+char env_boot_dev[MAX_ENVLEN] = "";
+char env_bootdef_dev[MAX_ENVLEN] = "";
+char env_boot_file[MAX_ENVLEN] = "";
+char env_booted_file[MAX_ENVLEN] = "";
+char env_boot_osflags[MAX_ENVLEN] = "";
+char env_boot_reset[MAX_ENVLEN] = "";
+char env_dump_dev[MAX_ENVLEN] = "";
+char env_enable_audit[MAX_ENVLEN] = "";
+char env_license[MAX_ENVLEN] = "";
+char env_char_set[MAX_ENVLEN] = "";
+int env_language = 0;
+char env_tty_dev[MAX_ENVLEN] = "";
+char env_scsiid[MAX_ENVLEN] = "";
+char env_scsifast[MAX_ENVLEN] = "";
+char env_com1_modem[MAX_ENVLEN] = "";
+char env_com1_flow[MAX_ENVLEN] = "";
+char env_com1_misc[MAX_ENVLEN] = "";
+char env_com2_baud[MAX_ENVLEN] = "";
+char env_com2_modem[MAX_ENVLEN] = "";
+char env_com2_flow[MAX_ENVLEN] = "";
+char env_com2_misc[MAX_ENVLEN] = "";
+char env_password[MAX_ENVLEN] = "";
+char env_logfail[MAX_ENVLEN] = "";
+char env_srm2dev_id[MAX_ENVLEN] = "";
+#endif
-long CallBackDispatcher(long a0, long a1, long a2, long a3, long a4)
+long
+CallBackDispatcher(long a0, long a1, long a2, long a3, long a4)
{
- int i;
+ long i;
switch (a0) {
+ case CONSCB_GETC:
+ break;
+
case CONSCB_PUTS:
- for(i=0;i<a3;i++) {
+ for(i = 0; i < a3; i++) {
PutChar(*(char *)a2+i);
}
return a3;
+
case CONSCB_GETENV:
switch (a1) {
case ENV_BOOTED_DEV:
- i = strcpy((char*)a2,BOOTDEVICE_NAME);
- break;
+ i = strcpy((char*)a2, env_booted_dev);
+ break;
+
case ENV_BOOTED_OSFLAGS:
- /*
- * 'c':ignores the sysconfigtab
- *
- * i= strcpy((char*)a2,"c");
- */
- i = strcpy((char*)a2,"");
- break;
+ i = strcpy((char*)a2, env_booted_osflags);
+ break;
+
+ case ENV_COM1_BAUD:
+ i = strcpy((char*)a2, env_com1_baud);
+ break;
+
+ case ENV_SECURE:
+ i = strcpy((char *)a2, env_secure);
+ break;
+
+#if 0
+ case ENV_AUTO_ACTION:
+ case ENV_BOOT_DEV:
+ case ENV_BOOTDEF_DEV:
+ case ENV_BOOT_FILE:
+ case ENV_BOOTED_FILE:
+ case ENV_BOOT_OSFLAGS:
+ case ENV_BOOT_RESET:
+ case ENV_DUMP_DEV:
+ case ENV_ENABLE_AUDIT:
+ case ENV_LICENSE:
+ case ENV_CHAR_SET:
+ case ENV_LANGUAGE:
+ case ENV_TTY_DEV:
+ case ENV_SCSIID:
+ case ENV_SCSIFAST:
+ case ENV_COM1_MODEM:
+ case ENV_COM1_FLOW:
+ case ENV_COM1_MISC:
+ case ENV_COM2_BAUD:
+ case ENV_COM2_MODEM:
+ case ENV_COM2_FLOW:
+ case ENV_COM2_MISC:
+ case ENV_PASSWORD:
+ case ENV_LOGFAIL:
+ case ENV_SRM2DEV_ID:
+#endif
default:
- i = strcpy((char*)a2,"");
- printf ("GETENV unsupported option %d\n", a1);
+ strcpy((char*)a2,"");
+ i = (long)0xc000000000000000;
+ if (a1 >= 0 && a1 < 100)
+ printf ("GETENV unsupported option %d\n", a1);
+ else
+ printf ("GETENV unsupported option %s\n", a1);
break;
}
if (i > a3) {
diff --git a/system/alpha/console/paljtokern.s b/system/alpha/console/paljtokern.s
index 30497ef01..979d719a9 100644
--- a/system/alpha/console/paljtokern.s
+++ b/system/alpha/console/paljtokern.s
@@ -1,8 +1,8 @@
-#include "dc21164.h" // DECchip 21164 specific definitions
-#include "osf.h" // OSF/1 specific definitions
-#include "macros.h" // Global macro definitions
-#include "ev5_impure.h" // Scratch & logout area data structures
-#include "platform.h" // Platform specific definitions
+#include "dc21164.h" // DECchip 21164 specific definitions
+#include "osf.h" // OSF/1 specific definitions
+#include "macros.h" // Global macro definitions
+#include "ev5_impure.h" // Scratch & logout area data structures
+#include "platform.h" // Platform specific definitions
.global palJToKern
.text 3
diff --git a/system/alpha/console/paljtoslave.tmp b/system/alpha/console/paljtoslave.tmp
deleted file mode 100644
index 69d212b1e..000000000
--- a/system/alpha/console/paljtoslave.tmp
+++ /dev/null
@@ -1,92 +0,0 @@
-unsigned int palJToKern[] = {
-0x467f041b,
-0x47ff0419,
-0x47ff041a,
-0x76940208,
-0x76940113,
-0x67ff0140,
-0x203f0004,
-0x67ff0140,
-0x7421020f,
-0x67ff0140,
-0x203f0000,
-0x74210200,
-0x74210103,
-0x245f2000,
-0x20420000,
-0x67ff0140,
-0x64210118,
-0x67ff0140,
-0x44220401,
-0x74210118,
-0x67ff0140,
-0x67ff0140,
-0x67ff0140,
-0x67ff0140,
-0x67ff0140,
-0x6d359010,
-0x4921b729,
-0x67ff0140,
-0x75290154,
-0x67ff0140,
-0x6fd59000,
-0x77ff020a,
-0x77ff0105,
-0x7631010b,
-0x67ff0140,
-0x67ff0140,
-0x77ff020a,
-0x77ff0105,
-0xffffffffc3e00001,
-0x0,
-0x47ff041f,
-0x77ff0119,
-0x47ff041f,
-0x47ff041f,
-0x47ff041f,
-0x47ff041f,
-0x47ff041f,
-0x47ff041f,
-0x47ff041f,
-0x47ff041f,
-0x47ff041f,
-0x47ff041f,
-0x47ff041f,
-0x47ff041f,
-0x47ff041f,
-0x47ff041f,
-0x47ff041f,
-0x47ff041f,
-0x47ff041f,
-0x47ff041f,
-0x47ff041f,
-0x47ff041f,
-0x47ff041f,
-0x47ff041f,
-0x47ff041f,
-0x47ff041f,
-0x47ff041f,
-0x47ff041f,
-0x47ff041f,
-0x47ff041f,
-0x47ff041f,
-0x47ff041f,
-0x47ff041f,
-0x47ff041f,
-0x47ff041f,
-0x47ff041f,
-0x47ff041f,
-0x47ff041f,
-0x47ff041f,
-0x47ff041f,
-0x47ff041f,
-0x47ff041f,
-0x47ff041f,
-0x47ff041f,
-0x47ff041f,
-0x47ff041f,
-0x47ff041f,
-0x47ff041f,
-0x7bffc000,
-0x0,
-};
diff --git a/system/alpha/console/printf.c b/system/alpha/console/printf.c
index e0dc0426b..24efa802e 100644
--- a/system/alpha/console/printf.c
+++ b/system/alpha/console/printf.c
@@ -79,19 +79,22 @@ static char *rcsid = "$Id: printf.c,v 1.1.1.1 1997/10/30 23:27:12 verghese Exp $
/* The string s is terminated by a '\0' */
-void PutString(char *s)
+void
+PutString(const char *s)
{
while (*s) PutChar(*s++);
}
/* print c count times */
-void PutRepChar(char c, int count)
+void
+PutRepChar(char c, int count)
{
while (count--) PutChar(c);
}
/* put string reverse */
-void PutStringReverse(char *s, int index)
+void
+PutStringReverse(const char *s, int index)
{
while ((index--) > 0) PutChar(s[index]);
}
@@ -103,7 +106,8 @@ void PutStringReverse(char *s, int index)
if width is 0, use whatever is needed
if fill is 0, use ' '
*/
-void PutNumber(sl value, int radix, int width, char fill)
+void
+PutNumber(sl value, int radix, int width, char fill)
{
char buffer[40];
ui bufferindex = 0;
@@ -195,7 +199,8 @@ void putFloat(double a, int fieldwidth, char fill)
PutChar((char)(b % 10) + '0');
}
}
-char *FormatItem(char *f, va_list *ap)
+const char *
+FormatItem(const char *f, va_list *ap)
{
char c;
int fieldwidth = 0;
@@ -222,12 +227,12 @@ char *FormatItem(char *f, va_list *ap)
return(f);
}
case 's': {
- char *a = va_arg(*ap, char *);
+ const char *a = va_arg(*ap, const char *);
- if (leftjust) PutString((char *) a);
- if (fieldwidth > strlen((char *) a))
- PutRepChar(fill, fieldwidth - strlen((char *)a));
- if (!leftjust) PutString((char *) a);
+ if (leftjust) PutString((const char *) a);
+ if (fieldwidth > strlen((const char *) a))
+ PutRepChar(fill, fieldwidth - strlen((const char *)a));
+ if (!leftjust) PutString((const char *) a);
return(f);
}
case 'd': radix = -10;
@@ -260,7 +265,8 @@ char *FormatItem(char *f, va_list *ap)
return(f);
}
-void printf(char *f, ...)
+int
+printf(const char *f, ...)
{
va_list ap;
@@ -277,9 +283,11 @@ void printf(char *f, ...)
}
va_end(ap); /* clean up */
+ return 0;
}
-void panic(char *f, ...)
+void
+panic(const char *f, ...)
{
va_list ap;